In the clip posted to social media, streets in the city of Puerto Rican Guyama are seen flooded with heavy currents slamming through roads and past homes during Hurricane Maria.
Fallen trees can also be seen amid the gushing flow of water ripping through the area.
The footage comes after more than three million people living in Puerto Rico were left without power after the storm caused catastrophic flash flooding.
Puerto Rico was forecast to receive up to 20 inches of rain as the hurricane passed over the US territory.
Now moving away form Puerto Rico, the hurricane has been downgraded from a category 4 to a category 2 hurricane but is still packing winds of up to 110mph.

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The NHC said: “At 11pm EDT/AST (3am UTC), the large eye of Hurricane Maria was located near latitude 19.2 North, longitude 67.9 West. Maria is moving toward the northwest near 9mph (15 kmph), and this general motion with a decrease in forward speed is expected through Thursday night.
“A turn toward the north-northwest is forecast on Friday. On the forecast track, the core of Hurricane Maria will continue to move away from Puerto Rico during the next several hours, and then pass offshore of the northeastern coast of the Dominican Republic early Thursday.
“Maria should then move near the Turks and Caicos Islands and the southeastern Bahamas Thursday night and Friday.”
The USA has been warned to brace itself for Hurricane Maria with it set to make its way towards the east coast of the country next week.
CBS Boston’s chief meteorologist Eric Fisher said it could be a “close call” for those in the New England region, which includes the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont.
He said: “It could be a close call for New England toward the middle of next week.
“We’re watching a trough that’s going to be charging in from the west and it will be a bit of a race between the storm drying close [on] Wednesday and the Thursday and that trough blowing it out to sea.”